diff --git a/EncryptionPage/EncryptionPage.xaml.cs b/EncryptionPage/EncryptionPage.xaml.cs
index b1387eb..6031ce3 100644
--- a/EncryptionPage/EncryptionPage.xaml.cs
+++ b/EncryptionPage/EncryptionPage.xaml.cs
@@ -73,7 +73,7 @@ public EncryptionPage()
 
         private void EncryptButton_Click(object sender, RoutedEventArgs e)
         {
-            byte[] inputBytes = Encoding.ASCII.GetBytes(InputTextBox.Text);
+            byte[] inputBytes = Encoding.Default.GetBytes(InputTextBox.Text);
             EncryptedMessage = Utils.Encrypt(inputBytes, E, N);
 
             InputBinTextBox.Text = Utils.ToString(inputBytes);
diff --git a/KeyGeneratorPage/KeyGeneratorPage.xaml.cs b/KeyGeneratorPage/KeyGeneratorPage.xaml.cs
index bff9690..ec7b2ee 100644
--- a/KeyGeneratorPage/KeyGeneratorPage.xaml.cs
+++ b/KeyGeneratorPage/KeyGeneratorPage.xaml.cs
@@ -171,14 +171,10 @@ private void GenerateButton_Click(object sender, RoutedEventArgs e)
                      where prime < Totient && GCD(prime, Totient) == 1
                      select prime;
             
-            E = ee.ElementAt(rand.Next(ee.Count()));
+            E = (ee.Count() > 0) ? ee.ElementAt(rand.Next(ee.Count())) : 0;
 
             // 3. Находим d.
             D = modInverse(E, Totient);
-
-            // Проверка.
-            Debug.Assert(GCD(E, Totient) == 1);
-            Debug.Assert((E * D) % Totient == 1);
         }
     }
 }